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Old 12-18-2012, 05:05 PM   #1
PerfectLine
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Casey C Benn
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Displacing nParticles?

Can I displace nParticles?

I have this setup where I used Particles to distribute rocks and debris with the instancer.

Now, my main issue is that I am also using a displacement map for the terrain everything is sitting upon. The displacement map makes the ground higher and lower in spots then the nParticles have collided with. So I am wondering if I can use the displacement map or at least geometry to push and pull the nParticles' location to make everything snap to the new displaced ground position?

OR... I suppose I should just do a displacement to polygons and use that new geometry to be the collision object.... though it would be high res geo and slow the simulation down.

Any thoughts appreciated.
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Old 12-18-2012, 09:17 PM   #2
Duncan
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Duncan Brinsmead
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The easiest would be displace to poly( perhaps with a lower tessellation than you are rendering with). However if it is a 2d map and you know the bounds you could perhaps use colorAtPoint inside a particle creation expression to offset the particle location.
 
Old 12-18-2012, 09:17 PM   #3
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